The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 1980
Filed:
Jul. 02, 1979
Applicant:
Inventors:
Armando Belmondo, Pietraporzio, IT;
Massimo Castagna, Turin, IT;
Assignee:
Centro Richerche Fiat S.p.A., Orbassano, IT;
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
427 35 ; 427 53 ; 427190 ; 427191 ; 4273763 ; 4273764 ; 2191 / ; 2191 / ; 291566 ; 75203 ; 7520 / ; 75222 ;
Abstract
The surface of a metallic substrate is coated with wear-resistant material by depositing on the surface a layer of a mixture of a coating powder including a metallic carbide with powdery silicon and heating said layer by exposure to a source of high density energy to bring about simultaneous evaporation of said silicon and fusion of said coating powder with bonding to said substrate. A coating of high surface porosity can be obtained. The substrate may be a piston ring for heavy-duty internal combustion engines.